Beijing Ditan Hospital, the first domestic successful application of Ekahau real-time positioning system
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Beijing Ditan Hospital is a tertiary first-class hospital under the Beijing Municipal Health Bureau. As the largest infectious disease hospital in China, Beijing Ditan Hospital mainly treats 35 types of notifiable infectious diseases except tuberculosis. It is also a specialized hospital for the treatment of various liver diseases. It is a “National Pharmaceutical Clinical Research Base” for viral hepatitis and AIDS. As the designated hospital for the treatment of various infectious diseases in Beijing, Beijing Ditan Hospital has participated in the treatment and rescue of major infectious diseases on many occasions, and has made outstanding contributions to controlling the epidemic of infectious diseases in Beijing.
In order to meet the needs of hospital operation and management, the needs of hospital strategic development, and the needs of social services, hospitals need to use IT technology to achieve the following business goals:
l Strengthen the collection, transmission, storage, and use management of various business data, and promote information sharing, so that medical staff, decision makers, and managers can obtain the information they need in a timely and accurate manner, and improve the quality of work.
l Use information technology to reduce cross-infection among patients, between patients and medical staff, and between medical staff.
l Strengthen medical waste management through information technology.
l Strengthen medical quality process management, reduce medical errors, improve medical quality, ensure medical safety, and increase patient satisfaction.
l Reasonably allocate resources, increase resource utilization, control material consumption in the medical process, and reduce costs.
l Strengthen hospital process monitoring to help managers and decision makers understand the operating status of the hospital in real time, and find and solve problems in time.
1. Project overview
One of the tasks of the digital hospital is to realize the transparency of the hospital, that is, to realize the refined management of the hospital through the transparency of data, the transparency of business processes, and the transparency of auxiliary processes. WI-FI real-time positioning technology is one of the important technical means to help hospitals achieve transparency.
The outpatient and emergency medical technology building and ward building of the completed Ditan Hospital have realized a wireless local area network (IEEE 802.11 b/g) covering the entire building. In addition, the hospital has also deployed a large number of EDA and notebook devices to support applications such as mobile office and bedside services.
In order to give full play to the effectiveness of wireless local area networks, the hospital plans to implement real-time tracking and positioning of important personnel, equipment and objects by establishing an Ekahau real-time positioning system based on WI-FI technology.
Through this project, the technical foundation of tracking applications of great significance to the hospital will be realized. Based on this technology, the tracking applications of various materials and personnel can be realized. This application will be an important part of the hospital’s real-time positioning and tracking system. The application has:
1. Medical waste tracking. Monitor the location and transportation route of the medical garbage truck to ensure that the garbage truck runs on the planned route and in the dedicated channel.
2. Follow-up of emergency patients. Positioning management of emergency patients, real-time tracking of the patient’s location.
3. WI-FI mobile device tracking. Track the positions of EDA and notebooks in working state, so that the positions of the corresponding personnel can be tracked.
4. Valuable equipment tracking. Locate and track valuable mobile devices.
2. Project purpose
The real-time positioning and tracking system project of Beijing Ditan Hospital is mainly based on Ekahau’s WI-FI-based positioning technology to realize the monitoring of relevant hospital personnel (doctors, nurses, etc.), equipment (EDA, notebooks and other equipment) and objects (medical waste). Dynamic and real-time tracking management to achieve the following goals:
1. Standardize the management of medical waste collection, transfer and storage process, strictly control the transportation route of medical waste, accurately record the time of entry and exit of medical waste, and prevent serious consequences caused by errors in the transportation of medical waste;
2. Strengthen the monitoring and management of emergency and critical patients, and provide efficiency in the rescue process;
3. Through the tracking of WI-FI mobile devices, understand the dynamics of the distribution of personnel and improve the efficiency of work scheduling;
4. Prevent the loss of valuable equipment and improve the efficiency of equipment use;
3. Design principles
1. Uniformity: adopt uniform technical standards and uniform system architecture;
2. Overallity: Carry out the overall design from the perspective of a digital hospital, making the real-time positioning and tracking system an organic part of the digital model of Ditan Hospital;
3. Economical: Make full use of Beijing Ditan Hospital’s investment in wireless bureau network facilities to establish a WI-FI real-time positioning and tracking system for the entire hospital; taking into account Beijing Ditan Hospital’s investment in the main database and integrated platform, real-time positioning and tracking For the permanent storage of data and the integration with other application systems, it is best to use the CACHE database and ENSEMBLE platform that Beijing Ditan Hospital has purchased;
4. Scalable: With the gradual deepening of the digital construction of Beijing Ditan Hospital, there will be new application requirements that rely on the real-time positioning and tracking system. The real-time positioning and tracking system can be flexibly expanded to add common requirements for these applications. support;
5. Scalability: The system must have good future-oriented scalability, which can not only meet current needs, but also support the ever-increasing demand for tracking new equipment in the future.
Four, system design requirements
1.Application architecture design requirements
The design of the application architecture of the real-time location tracking system project needs to meet the following requirements:
1.1 Multi-layer application architecture; support BROWSER or Rich Windows clients
1.2 Based on the component-based SOA architecture, application service functions are published through Web Services technology into services that can be used by third-party applications, or can use XML messaging to transfer data;
1.3 Have a good security mechanism to complete user authentication, authorization and data confidentiality.
2.Integration capability design requirements
The real-time location tracking system needs to have the ability to exchange data with other application systems, and the data exchange needs to be established on the hospital’s unified integration platform (ENSEMBLE).
3.Standard compliance
4. In order to ensure the openness of the system and the realization of integration, the system shall comply with the following standards:
4.1 Support UNICODE encoding
4.2 Support TCP/IP protocol, HTTP, HTTPS
4.3 Support XML and Web Service.
5.Operating system requirements
Adopt Windows 2003 operating system as AD server and CA server.
6.Database management system requirements
6.1 Large-scale object-oriented relational database or post-relational database;
6.2 Support hardware and operating system platforms of mainstream manufacturers;
6.3 Support multiple machines and multiple processors;
6.4 The database system has good scalability and can update the system without affecting the normal operation of the database.
6.5 Support mainstream network protocols (TCP/IP, IPX/SPX, NETBIOS and mixed protocols, etc.);
6.6 It has the technologies required to support parallel operations, including multi-server collaboration technology and integrity control technology for transaction processing.
7.Requirements for WI-FI location tags and equipment
7.1 The medical waste container/transporter uses WI-FI positioning tags that support RSSI positioning;
7.2 Use WI-FI positioning tags that support RSSI positioning for disinfection equipment package containers/transport vehicles;
7.3 Use WI-FI positioning tags that support RSSI positioning for patient tracking;
7.4 Use WI-FI positioning tags that support RSSI positioning for valuable mobile medical equipment;
7.5 The WI-FI frequency range is suitable for the hospital environment;
Five, system overview
The Ekahau real-time location system (RTLS) based on wireless local area network Wi-Fi provided by Shanghai Xihua Communication Technology Co., Ltd. is the industry’s most accurate, simplest, feasible, and most cost-effective WiFi asset and personnel tracking system solution. Ekahau RTLS is applied Hospitals have better positioning and tracking effects for medical equipment, doctors, nurses, and patients.
Ekahau RTLS enables asset management departments to quickly find medical equipment in hospitals and improve service efficiency, enabling managers to reduce the time wasted by finding medical equipment. Provide quick positioning and search for improving service response for medical equipment that must be regularly maintained and maintained. It can also locate and track special patients, such as patients with infectious diseases and mental patients, so as to quickly find targets in any corner of the hospital to prevent the spread of infectious diseases and accidents.
In an emergency, persons carrying Ekahau Wi-Fi tags can press the alarm button to send a signal to the monitoring department for help. This can reduce the time to search for the target person and get a faster response. When an unauthorized person with an Ekahau Wi-Fi label enters the restricted area, the system will send a message to the monitoring department to warn, which can effectively prevent unnecessary accidents and enhance the level of safety management.
Ekahau’s Wi-Fi-based patented positioning technology is completely based on software, which can continuously monitor assets and personnel in the hospital’s wireless network Wi-Fi coverage area in real time, and achieve precise positioning and tracking. The user can receive the information transmitted by the RTLS system in real time through application software or application program interface on the hospital network, and perform real-time positioning and tracking management of personnel to improve safety and workflow; at the same time, it is possible to perform operations on equipment between facilities. Precise and effective positioning, management and redeployment optimize the visibility of assets and achieve maximum utilization and return on investment. Real-time positioning and tracking of the location of assets and personnel can provide managers with relevant information of significant value, which can benefit various hospitals that are committed to improving response speed, management level and efficiency.
Six, system characteristics
1. It is 100% based on the 802.11ab/g/n standard, which is suitable for any existing wireless network facilities of any brand of any generation;
2. The structure is simple, and the system is composed of positioning tags and software. Only use the existing wireless network WiFi network equipment (AP), without adding any additional hardware facilities (such as card reader, exciter, exciter, antenna, etc.);
3. The software based on patented high-precision algorithm, calculates rssi through the positioning engine, the positioning accuracy is about 3 meters, and the maximum can reach 1 meter;
4. A single positioning engine EPE running on a standard enterprise-level server supports the deployment of up to 20,000 tracking objects in the park or enterprise-wide and the simultaneous positioning of 600 objects per second;
5. Open architecture design, the positioning engine EPE can be seamlessly integrated into the existing middleware, database, ERP system, workflow and other systems, and can automatically monitor and report;
6. Through the HTTP/XML application programming interface and SDK (soft development kit), it can speed up the development and integration of application software using third-party systems;
7. Customers can complete real-time positioning of personnel or assets and location history through the Internet WEB interface. The positioning accuracy can be controlled at three levels: building, floor or room; the real-time positioning information provided by the location map interface includes asset location and the last one. Time record of location information, location movement record and event management, etc.;
8. The user can use the software to virtually set up different areas in the field, such as setting “no entry zone”, “alarm zone” and dividing the space into several virtual grid-like rooms, etc.;
9. Each WIFI positioning tag has a globally unique code, which is connected with the information of the corresponding asset equipment and personnel, such as asset name, model, time, attribution, and personnel’s name, title, department and other information;
10. Unique two-way communication function, visual and alarm and SMS prompt;
11. Tag remote management function, real-time monitoring of WIFI positioning tag battery;
12. The installation and implementation are flexible, convenient and quick, reducing costs.
Seven, system architecture
The Ekahau system is mainly composed of positioning engine (EPE), site survey (Site Survey), application software (including Tracker, Finder, Ekahau Vision) and WIFI positioning tags.
8. GIS tracking management system
1. Application system framework description
The GIS tracking management system is a user application system built on the Ekahau real-time positioning system. The user can intuitively manage the basic information of various WI-Fi mobile devices, valuable equipment, patients and garbage trucks through the tracking management system.
ü The location tracking software uses J2EE technology to design a service-oriented architecture framework;
ü By adopting the SOA framework, a three-tier (Browser/Application Server/Database Server) application architecture based on the JAVA platform.
ü The software is built on the B/S three-tier application system structure. All businesses are carried out through the user application access layer, a comprehensive application system built on a comprehensive database.
ü The database of the location tracking software adopts mainstream ORCACLE and SQL Server databases.
ü Receive tag location information from Ekahau positioning system through SOAP, and display it in GIS graphics in the location tracking software. And can provide data transfer and event notification to third-party software through SOAP.
2. Application system function description
2.1. Platform basic information, authority management, system maintenance management
These 3 modules are the basic modules of the platform, responsible for maintaining the basic information of the GIS tracking management platform:
ü The basic information module of the platform includes two sub-modules: organization maintenance and user information maintenance. It can maintain the organization of the hospital and the users who log in to the system.
ü The authority management module includes two sub-modules: role management and role authorization. Responsible for defining roles and controlling the permissions of system roles to access modules.
ü The system maintenance management module includes three sub-modules: module link management, online users, and system log management. You can manage module links and view previous users and system logs. The log is very important for security. It records various things that happen on the system every day. You can use it to check the cause of the error or the traces left by the attacker when it was attacked. The main functions of the log are: auditing and monitoring. He can also monitor system status in real time, monitor and track intruders, etc.
2.2. WI-FI mobile device management
The system has established a WI-FI mobile device account, and the user can maintain (add, delete, modify, and check) the information of the WI-FI mobile device in this module. After the administrator installs the positioning client on the Wi-Fi mobile device that needs to be managed, the system can track the device.
The GIS tracking management system uses the Ekahau positioning system to allow hospital managers to quickly and accurately track through WI-FI mobile devices to understand the dynamics of the distribution of personnel and improve the efficiency of work scheduling.
When the administrator wants to know the location of a WI-FI device alone, the system also provides advanced query and display functions. These search criteria include but are not limited to:
Display types, such as: query by tag number, query by valuable equipment name, query by storage department or custodian, etc.;
2.3. Valuable equipment management
The system has established a valuable equipment account, and the user can maintain (add, delete, modify, and check) the information of the valuable equipment in this module. After a valuable device is assigned a WI-FI location tag, the administrator can select a valuable device information and locate the current location of the device through the WI-FI location tag, as well as the distribution of all valuable devices.
Using this module, hospital managers can timely and accurately understand the distribution dynamics of valuable equipment.
ü Prevent the loss of valuable equipment, improve the efficiency of equipment use, and improve service efficiency.
In the event of emergency rescue and diagnosis and treatment, you can quickly know where you can find available wheelchair beds, surgical kits, infusion pumps, retractors and other medical instruments and equipment.
Through multiple flexible parameters customized for specific user requirements, targeted searches can be easily performed. These search criteria include but are not limited to:
Display types, such as: query by tag number, query by valuable equipment name, query by storage department or custodian, etc.;
2.4. Important patient management
The system has established an important patient account, and the user can maintain (add, delete, modify, and check) patient information in this module. After the patient carries the assigned WI-FI location tag, the medical staff can locate each patient’s location and the distribution of the patient through the WI-FI location tag.
With this module, hospital managers can
ü Reduce cross-infection among patients, between patients and medical staff, and between medical staff.
ü Strengthen the monitoring and management of emergency and critical patients, and provide the efficiency of the rescue process;
2.5. Patient call early warning management
For patients wearing tags, when an emergency occurs, the patient can make an emergency call by triggering the call button on the tag. After the call, the call information will be displayed in the system, and the medical staff can view the call information in the system. And you can view the current location of the patient by clicking on the information for timely rescue and treatment.
2.6. Garbage truck management
Each garbage truck is equipped with a WI-FI location tag (active tag), which is responsible for identifying the garbage truck, and the system maintains the attribute information of the garbage truck process, including the type and number of the garbage truck, and the number of the responsible person. The system can display the current location of each garbage truck in real time, extract and display the detailed information of the garbage truck from the background database through tags, and make statistics and analysis of the usage of the garbage truck.
Medical waste transportation monitoring
Medical waste transportation log
For each operation of the garbage truck, the system will automatically record the running route and running time, and save it in the system; the administrator can check the log by viewing the historical track function.
Garbage truck warning
The system will monitor the location of the garbage truck in real time. The garbage truck must move in the designated operating area (the pink area in the picture above). If the garbage truck exceeds the specified range, the system will prompt the corresponding administrator: The garbage truck is operating illegally.
The administrator logs in to the system and enters[System Alarm Management]-[Garbage Truck Path Alarm Management](as shown in the figure below) to view all violation records. The record will show the time each time the garbage truck exceeds the warning zone and the time when it returns to the warning zone again.
Ø The garbage truck runs from the starting point, and the system monitors the location of the garbage truck;
Ø Whenever a garbage truck enters the coverage area of a node, the system records the passing of a node;
ØIf a garbage truck enters or enters from a non-designated area, the system will automatically warn the garbage truck and run illegally.
2.7. Statistical reports
The system provides powerful report statistics and analysis functions. Using iReport’s mainstream open source WEB report customization tool, various related statistical reports can be customized according to customer needs, and PDF or EXCLE documents can be exported.
9. Shanghai Xihua Communication Technology Co., Ltd.
Shanghai Xihua Communication Technology Co., Ltd. is a wholly-owned subsidiary of Hong Kong Communications Group HKC (stock code: 248), a Hong Kong listed company, dedicated to providing system solutions. Its business involves communications, computer networks, enterprise application software, WIFI, RFID/AIDC and other fields.
Hong Kong Communications Group HKC is Ekahau’s partner in the Asia-Pacific region. As the sole agent of Ekahau in mainland China, Shanghai Xihua Communication Technology Co., Ltd. is responsible for the promotion and sales of Ekahau real-time positioning system (RTLS) in China. Shanghai Xihua provides the system Software and hardware products, testing, installation, secondary development of customer application software (Chinese version), technical support and training. Welcome to consult and negotiate, and look forward to cooperation!
Address: 11th Floor, East Huaihai International Building, 45 Huaihai East Road, Shanghai
Contact: Liu Tao
Mobile: 13816134029
Phone: 021-61702233-152
e-mail:
[email protected]
URL:
http://www.hkctechnology.com.cn
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